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# vi: ts=4 expandtab
#
# Copyright (C) 2014 Rackspace, US Inc.
#
# Author: Nate House <nathan.house@rackspace.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3, as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from cloudinit import distros
from cloudinit import helpers
from cloudinit import log as logging
from cloudinit import util
from cloudinit.distros.parsers.hostname import HostnameConf
from cloudinit.settings import PER_INSTANCE
LOG = logging.getLogger(__name__)
class Distro(distros.Distro):
locale_conf_fn = "/etc/locale.gen"
network_conf_fn = "/etc/conf.d/net"
tz_conf_fn = "/etc/timezone"
tz_local_fn = "/etc/localtime"
init_cmd = [''] # init scripts
exclude_modules = [
'grub-dpkg',
'apt-configure',
'apt-pipelining',
]
def __init__(self, name, cfg, paths):
distros.Distro.__init__(self, name, cfg, paths)
# This will be used to restrict certain
# calls from repeatly happening (when they
# should only happen say once per instance...)
self._runner = helpers.Runners(paths)
self.osfamily = 'gentoo'
# Fix sshd restarts
cfg['ssh_svcname'] = '/etc/init.d/sshd'
def apply_locale(self, locale, out_fn=None):
if not out_fn:
out_fn = self.locale_conf_fn
util.subp(['locale-gen', '-G', locale], capture=False)
# "" provides trailing newline during join
lines = [
util.make_header(),
'LANG="%s"' % (locale),
"",
]
util.write_file(out_fn, "\n".join(lines))
def install_packages(self, pkglist):
self.update_package_sources()
self.package_command('', pkgs=pkglist)
def _write_network(self, settings):
util.write_file(self.network_conf_fn, settings)
return ['all']
def _bring_up_interface(self, device_name):
cmd = ['/etc/init.d/net.%s' % device_name, 'restart']
LOG.debug("Attempting to run bring up interface %s using command %s",
device_name, cmd)
try:
(_out, err) = util.subp(cmd)
if len(err):
LOG.warn("Running %s resulted in stderr output: %s", cmd, err)
return True
except util.ProcessExecutionError:
util.logexc(LOG, "Running interface command %s failed", cmd)
return False
def _bring_up_interfaces(self, device_names):
use_all = False
for d in device_names:
if d == 'all':
use_all = True
if use_all:
# Grab device names from init scripts
cmd = ['ls', '/etc/init.d/net.*']
try:
(_out, err) = util.subp(cmd)
if len(err):
LOG.warn("Running %s resulted in stderr output: %s", cmd,
err)
except util.ProcessExecutionError:
util.logexc(LOG, "Running interface command %s failed", cmd)
return False
devices = [x.split('.')[2] for x in _out.split(' ')]
return distros.Distro._bring_up_interfaces(self, devices)
else:
return distros.Distro._bring_up_interfaces(self, device_names)
def _select_hostname(self, hostname, fqdn):
# Prefer the short hostname over the long
# fully qualified domain name
if not hostname:
return fqdn
return hostname
def _write_hostname(self, your_hostname, out_fn):
conf = None
try:
# Try to update the previous one
# so lets see if we can read it first.
conf = self._read_hostname_conf(out_fn)
except IOError:
pass
if not conf:
conf = HostnameConf('')
conf.set_hostname(your_hostname)
util.write_file(out_fn, str(conf), 0644)
def _read_system_hostname(self):
sys_hostname = self._read_hostname(self.hostname_conf_fn)
return (self.hostname_conf_fn, sys_hostname)
def _read_hostname_conf(self, filename):
conf = HostnameConf(util.load_file(filename))
conf.parse()
return conf
def _read_hostname(self, filename, default=None):
hostname = None
try:
conf = self._read_hostname_conf(filename)
hostname = conf.hostname
except IOError:
pass
if not hostname:
return default
return hostname
def set_timezone(self, tz):
tz_file = self._find_tz_file(tz)
# Note: "" provides trailing newline during join
tz_lines = [
util.make_header(),
str(tz),
"",
]
util.write_file(self.tz_conf_fn, "\n".join(tz_lines))
# This ensures that the correct tz will be used for the system
util.copy(tz_file, self.tz_local_fn)
def package_command(self, command, args=None, pkgs=None):
if pkgs is None:
pkgs = []
cmd = ['emerge']
# Redirect output
cmd.append("--quiet")
if args and isinstance(args, str):
cmd.append(args)
elif args and isinstance(args, list):
cmd.extend(args)
if command:
cmd.append(command)
pkglist = util.expand_package_list('%s-%s', pkgs)
cmd.extend(pkglist)
# Allow the output of this to flow outwards (ie not be captured)
util.subp(cmd, capture=False)
def update_package_sources(self):
self._runner.run("update-sources", self.package_command,
["-u", "world"], freq=PER_INSTANCE)
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